To provide an adjustable seat back that has a structure capable of position adjustment and shape adjustment of a headrest part, a neck piloti part and a backrest part so as to suit a seating height of each of the sitting people and a curvature shape of the head part, cervical spine, thoracic spine, lumbar spine and sacral spine when being viewed from a lateral side, and capable of changing each cushion part.SOLUTION: An adjustable seat back has a structure capable of adjusting each of the shapes of a headrest part 1, a neck piloti part 2 and a backrest part 3 for a sitting person and providing a vertical adjustment structure with them so as to hold a curvature shape of the head part, cervical spine, thoracic spine, lumbar spine and sacral spine of the sitting person when being viewed from a lateral side from a back side of the sitting person.SELECTED DRAWING: Figure 1

    【課題】ヘッドレスト部と、ネックピロティー部と、背もたれ部を、着座者個々の座高および頭部と頸椎と胸椎と腰椎と仙椎を側面から見たときの湾曲の形状に合わせ、位置調整と形状調整、各クッション部の交換が可能な構造を持った、調整式シートバックを提供する。【解決手段】着座者のヘッドレスト部1と、ネックピロティ部2と、背もたれ部3それぞれの形状を調整可能にするとともに、それらに上下調整構造を持たせることで、着座者の頭部と、頸椎と、胸椎と、腰椎と仙椎を側面視したときの弯曲形状を、前記着座者の背中側から保持する構造とする。【選択図】図1


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    Title :

    ADJUSTABLE SEAT BACK


    Additional title:

    調整式シートバック


    Contributors:

    Publication date :

    2023-01-04


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60N SEATS SPECIALLY ADAPTED FOR VEHICLES , Sitze besonders für Fahrzeuge ausgebildet / A47C Stühle , CHAIRS



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